Review on ⚡️ Anmbest 4S 16.8V 40A Li-ion Battery Charger PCB BMS Protection Board with Balancer for Drill Motor by Traci Westhoff

🚨 UPDATE, 10/01/2020 🚨 Contacted the seller, got a replacement quickly, soldered a new block, when testing with a drill inside and outside of the battery pack, everything worked as it should. put the actual load on the drill today, ie real use, heard a pop in the drill after tightening the screw, the drill stopped working, disassembled the block and found a burned out MOSFET 🤯, I don't know if I'm unlucky with these blocks had or these blocks are designed for The batteries I use but remain disappointed with this product. 🤷‍♂️ --- I bought one of these BMS boards to use in a Dewalt battery pack and had mixed results with it. Some of the output voltages appear to register four cells in series while the other has no cell. Check out the pictures to see what I'm talking about. I can only think that one of the components or traces on the board is faulty, but I'm not entirely sure. When I measure the final output voltage of the 4-series cells coming out of the board I only get 12V while elsewhere on the board I see 16V. currently not working for my needs.